From observation, "brick" has evolved, as things do in language. In practice, it rarely means the traditional definition you refer to, but the softer one used here.
"Soft brick" is the correct term that already exists.
Which is the term that the article uses.
"The result is a device that’s soft-bricked, requiring a device erase and restore from backup."
...except in the headline.
So maybe the term shouldn't be 'soft brick' but rather 'muddied'.
"That updated muddied my device, I had to clean it up with a restore"